CMS List

404 Not Found

Enable Cookies

Privacy and Cookie Policy

General Contact


BioSpot ® for Plaque and Colony Counting

T Cell Monitoring with PBMC Samples

Serum-free Cell Culture Media


Regulatory and Quality Assurance

Service Contracts

Customer Support

About CTL


New Kits


Serum-free Media

Terms and Conditions

Privacy Policy



Career Opportunities


Contract Laboratory Services

Specimen processing & cryopreservation

ELISPOT/ FluoroSpot Plate Scanning and Analysis Services

Publications filter

Enroll in ELISPOT Workshop

Video Library


modal test

Analyzer Compliance

Product Catalog

Single-Color ELISPOT Enzymatic Suite

Double-Color ELISPOT Enzymatic Suite

The Image Annotator Tool

Colony counting with the BioSpotTM Software Suite

ELISA Software Suite

The Target Cell Visualization (TVATM) Software Suite

The Immunoqualify Tool

T-Cell Non-Human Primate

T-Cell Human

T-Cell Mouse

T-Cell Rat

T-Cell Pig

B-Cell Human

B-Cell Mouse

Human NK-TVA™ Kits


ImmunoSpot® Analyzers

Contact & Support

Our Company

Covid-19 Statement


Publication Request


Cell Counting Kits & Components


ImmunoSpot® Readers' satisfied customer base

The "secrets" behind the ImmunoSpot® Readers' success

Optical Resolution of ImmunoSpot® Readers

Regulatory compliance of ImmunoSpot® Readers

FCS output

SARS-CoV-2 neutralization references

Example of LDA output

CTL’s Kit ScAnalysis Service

Why ImmunoSpot®?

Assay Training & Consultation

Positive Controls for T cell Activation

Neutralizing Antibody (NAb) assays

Regulatory compliance of CTL Software

CTL’s Software Development

Nk-Activity Lots

Training & Consultation

ELISPOT/ FluoroSpot Analysis

Customer Testimonials

Contact Us

Recent Publications by CTL

Ph.D. Employees

Paul V. Lehmann

Magdalena Tary-Lehmann M.D., PhD., Adj. Prof.

Alexey Y. Karulin, Ph.D

Greg A. Kirchenbaum, Ph.D.

Oleg S. Targoni, Ph.D.

Ioana R. Moldovan, M.D., Ph.D.

Andrea Maul-Pavicic, Ph.D.

Anton V. Gorbachev, Ph.D.

Ting Zhang, M.D., Ph.D.

Olena Tyr, Ph.D.

Sylwia Chelstowska, Ph.D.

Ann-Charlott Salabarria, Ph.D.

Zoltan Megyesi, Ph.D.

Fridolin Franke, Dr. med. dent.

Wendy Huang, Ph.D.

HDR imaging


CTL Contract Laboratory Services Compliance

PCQC-ImmunoSpot® kits

cookie policy backup

Ramu Subbramanian, Ph.D.

Technical Sales Representative: Kits Division

Technical Support Specialist I (TSS-1)

IT Support Technician

Quality Assurance Specialist


CTL Festivities

Masters Employees

Artwork by Gabor Pesthy

Assistant Data Specialist

Sample Management Technician

Laboratory Assistant

Laboratory Production Associate

Reagents Technical Specialist

Human Resources Generalist

Quality Control Assistant

Contract Laboratory Services

Whole Blood Processing to Cryopreserved PBMC

T Cell ELISPOT Testing Services

B cell ELISPOT testing

Sample Management

Assay Standardization

Scanning & Analysis

Contract Laboratory Scanning & Analysis Services

Junior Scientist

Senior Software Engineer III

Lingling Yao, Ph.D.

Zhigang Liu, Ph.D.

Hong Nga Le, Ph.D.

Steve Todryk, Ph.D.

Quality/Regulatory Engineer

Miriam Frangini, Ph.D.

Billing Clerk

Register Webinar

Melinda Katona, PhD

Material Handler